Définir un format pour l'adresse mail

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  public bool TestEmailRegex(string emailAddress)
        {
            //                string patternLenient = @"\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*";
            //                Regex reLenient = new Regex(patternLenient);
            string patternStrict = @"^(([^<>()[\]\\.,;:\s@\""]+"
                  + @"(\.[^<>()[\]\\.,;:\s@\""]+)*)|(\"".+\""))@"
                  + @"((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"
                  + @"\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+"
                  + @"[a-zA-Z]{2,}))$";
            Regex reStrict = new Regex(patternStrict);
 
 
            //                      bool isLenientMatch = reLenient.IsMatch(emailAddress);
            //                      return isLenientMatch;
 
 
            bool isStrictMatch = reStrict.IsMatch(emailAddress);
            return isStrictMatch;
 
 
        }